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Finding the Fourth Proportional to 249,146.84, 373,741.86 and 71,668.28

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Solution

The fourth proportional to 249,146.84, 373,741.86 and 71,668.28 is: 107,508.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,146.84 : 373,741.86 = 71,668.28 : x
  2. Step 2: Convert to fraction form
    249,146.84/373,741.86 = 71,668.28/x
  3. Step 3: Cross multiply
    249,146.84x = 373,741.86 × 71,668.28
  4. Step 4: Simplify right side
    249,146.84x = 26,785,436,270.20
  5. Step 5: Solve for x
    x = 26,785,436,270.20/249,146.84
  6. Step 6: Final answer
    x = 107,508.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.